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155025464 = 23117432371
BaseRepresentation
bin10010011110110…
…00000000111000
3101210201002221212
421033120000320
5304141303324
623214422252
73561460166
oct1117300070
9353632855
10155025464
117a564a20
1243b01988
132616b459
1416836236
15d92370e
hex93d8038

155025464 has 32 divisors (see below), whose sum is σ = 317658240. Its totient is φ = 70341600.

The previous prime is 155025439. The next prime is 155025527. The reversal of 155025464 is 464520551.

It is a self number, because there is not a number n which added to its sum of digits gives 155025464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64199 + ... + 66569.

It is an arithmetic number, because the mean of its divisors is an integer number (9926820).

Almost surely, 2155025464 is an apocalyptic number.

It is an amenable number.

155025464 is an abundant number, since it is smaller than the sum of its proper divisors (162632776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155025464 is a wasteful number, since it uses less digits than its factorization.

155025464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 155025464 is about 12450.9222148402. The cubic root of 155025464 is about 537.1979499259.

The spelling of 155025464 in words is "one hundred fifty-five million, twenty-five thousand, four hundred sixty-four".

Divisors: 1 2 4 8 11 22 44 88 743 1486 2371 2972 4742 5944 8173 9484 16346 18968 26081 32692 52162 65384 104324 208648 1761653 3523306 7046612 14093224 19378183 38756366 77512732 155025464